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公开(公告)号：US12120336B2
公开(公告)日：2024-10-15
申请号：US18107841
申请日：2023-02-09
IPC分类号： H04N7/12 , H04N19/172 , H04N19/186 , H04N19/46 , H04N9/75
CPC分类号： H04N19/46 , H04N19/172 , H04N19/186 , H04N9/75
摘要： Techniques are described for efficiently embedding frame masks in a video stream. In some solutions, a computer implemented method includes operations for encoding a frame of video data comprising an array of pixels to generate an encoded video frame, and transmitting the encoded video frame to a video decoder. The array of pixels include foreground pixels and background pixels. The foreground pixels have respective first chroma component values which are bounded within a first chroma component range. Encoding the frame of video data can include converting the first chroma component values of the foreground pixels to second chroma component values by applying a mapping function. The second chroma component values are bounded within a second chroma component range. The second chroma component range is shifted or compressed from the first chroma component range.
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公开(公告)号：US20230067082A1
公开(公告)日：2023-03-02
申请号：US18047855
申请日：2022-10-19
申请人： NANTMOBILE, LLC
摘要： A system of properly displaying chroma key content is presented. The system obtains a digital representation of a 3D environment, for example a digital photo, and gathers data from that digital representation. The system renders the digital representation in an environmental model and displays that digital representation upon an output device. Depending upon the context, content anchors of the environmental model are selected which will be altered by suitable chroma key content. The chroma key content takes into consideration the position and orientation of the chroma key content relative to the content anchor and relative to the point of view that the environmental model is displayed from in order to accurately display chroma key content in a realistic manner.
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公开(公告)号：US11546567B2
公开(公告)日：2023-01-03
申请号：US16214027
申请日：2018-12-07
发明人： Alvaro Collet Romea , Bao Zhang , Adam G. Kirk
IPC分类号： G06T11/60 , H04N13/106 , H04N13/271 , H04N5/272 , G06K9/62 , H04N9/75 , G06T7/136 , G06T7/593 , G06T7/174 , G06T7/521 , G06T7/11 , G06T7/194 , G06V10/28 , G06V10/98 , G01B11/22
摘要： The subject disclosure is directed towards a framework that is configured to allow different background-foreground segmentation modalities to contribute towards segmentation. In one aspect, pixels are processed based upon RGB background separation, chroma keying, IR background separation, current depth versus background depth and current depth versus threshold background depth modalities. Each modality may contribute as a factor that the framework combines to determine a probability as to whether a pixel is foreground or background. The probabilities are fed into a global segmentation framework to obtain a segmented image.
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公开(公告)号：US11503263B2
公开(公告)日：2022-11-15
申请号：US17462953
申请日：2021-08-31
发明人： Long Hin Tang
摘要： A chroma key and presentation system, a presentation method, and a presentation kit all for simultaneous use in the presence of an in-person audience and remote audience. The system comprising: a chroma key light source, configured in use to emit chroma key light; a display surface which may be used as a projector screen for displaying projected media for viewing by the in-person audience from a projector, the display surface being at least partially transparent to the chroma key light; a camera disposed on an opposing side of the display surface to the chroma key light source, wherein the camera is configured to receive chroma key light for use in generating a composite image for the remote audience; and a directional light control filter, configured to reduce chroma key light transmission in a direction away from the camera.
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公开(公告)号：US11323678B2
公开(公告)日：2022-05-03
申请号：US14949640
申请日：2015-11-23
申请人： ARM Limited
发明人： Michal Bogusz , Piotr Chrobak , Damian Modrzyk
摘要： An apparatus for providing a foreground frame to be composited with a background frame in a chroma-keying arrangement, each of the foreground frame and the background frame comprising one or more regions that together form the respective frame. A detection module determines whether each frame region has a predetermined colour value and generates and stores chroma keying information based on the determination. Control circuitry then controls image processing to be performed on the region according to the stored chroma keying information.
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公开(公告)号：US11310472B2
公开(公告)日：2022-04-19
申请号：US16759655
申请日：2017-11-16
摘要： An image acquisition unit 40 acquires a subject image in which a subject is positioned in front of a background with a single color. An eye gaze information determination unit 32 determines an eye direction and a viewpoint position of a user wearing an HMD and provides the eye direction and the viewpoint position for a display control unit 50. The display control unit 50 performs chroma-key composition such that the subject included in the subject image may become a foreground image with respect to a background image and thereby generates a display image according to the viewpoint position of the user. The display control unit 50 determines an orientation of the subject such that the subject may be made to face the viewpoint position of the user, in a case where the viewpoint position has been changed.
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公开(公告)号：US11290660B1
公开(公告)日：2022-03-29
申请号：US16539710
申请日：2019-08-13
申请人： DROPKEY, Inc.
摘要： A system and, related method, is disclosed for enabling Chroma key compositing using a smart device, wherein an image/video of a subject situated in front of a portable monochromatic background is captured, and simultaneously layered upon a different desired background replacement that will replace only the monochromatic background captured. The portable monochromatic background structure can be an inflatable structure affixed with a plurality of lighting modules configured to ensure a uniform light distribution across the monochromatic background and separately ensure a uniform light distribution on the subject during the image/video capture. Moreover, a software application on a smart device can act as a system platform that enables for automatic light adjustment of the lighting modules on a portable monochromatic background to correct any light imperfections that impede color neutrality on the background, which would otherwise result in the inability to create broadcast quality background replacement content with a smart device using the monochromatic lighting platform disclosed herein.
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公开(公告)号：US20220070424A1
公开(公告)日：2022-03-03
申请号：US17462953
申请日：2021-08-31
发明人： Long Hin Tang
摘要： A chroma key and presentation system, a presentation method, and a presentation kit all for simultaneous use in the presence of an in-person audience and remote audience. The system comprising: a chroma key light source, configured in use to emit chroma key light; a display surface which may be used as a projector screen for displaying projected media for viewing by the in-person audience from a projector, the display surface being at least partially transparent to the chroma key light; a camera disposed on an opposing side of the display surface to the chroma key light source, wherein the camera is configured to receive chroma key light for use in generating a composite image for the remote audience; and a directional light control filter, configured to reduce chroma key light transmission in a direction away from the camera.
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公开(公告)号：US20210041946A1
公开(公告)日：2021-02-11
申请号：US16913985
申请日：2020-06-26
摘要： A video communication system to transmit an image of a presenter to appear displayed with eye contact at a location of an audience. The transmission system may comprise a camera positioned at the height of the eye level of the presenter with a direct view of the presenter through a semi-reflective mirror. The presenter may view in a line of sight through the semi-reflective mirror toward the camera to see a double reflection of an image display device with a live video of an audience as a reflection off the semi-reflective mirror and a secondary reflection off a mirror to display the image in a vertical orientation.
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公开(公告)号：US10834335B2
公开(公告)日：2020-11-10
申请号：US16379065
申请日：2019-04-09
申请人： FREEZE FRAME, LLC
发明人： Clifford R David
IPC分类号： G09G5/00 , H04N5/275 , H04N5/04 , H04N9/75 , G06Q30/06 , G06Q20/14 , G06Q30/02 , H04N5/28 , G06F16/51 , G07F17/16 , G06Q20/12 , H04N5/247
摘要： Systems and methods for creating and distributing professional quality pictorial souvenirs giving the illusion that guests of a facility were imaged at other locations, including making initial arrangements with guests, showing selections of background scene images at video displays and flashing chroma key images interspersed with frames of the scene images, taking key guest images in synch with the flashed key images, extracting guest image content from the key guest images and merging into selecting scene images, showing preview merges images for guest selection and providing souvenir portfolios that include merged images to guests or designees after making financial arrangements, including for payment to third parties for copyright content included in the souvenirs and with advertisers for promotional material included in the souvenirs.
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